參數(shù)資料
型號(hào): MAX8727
廠商: Maxim Integrated Products, Inc.
英文描述: 8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-CFP -55 to 125
中文描述: TFT-LCD升壓型DC-DC轉(zhuǎn)換器
文件頁(yè)數(shù): 4/13頁(yè)
文件大小: 253K
代理商: MAX8727
M
TFT-LCD Step-Up DC-DC Converter
4
_______________________________________________________________________________________
Note 1:
Specifications to -40
°
C are guaranteed by design, not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
SHDN
= 3V, FREQ = GND,
T
A
= -40°C to +85°C
, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CONTROL INPUTS
SHDN
, FREQ Input Low Voltage
V
IN
= 2.6V to 5.5V
0.3
×
V
IN
V
SHDN
, FREQ Input High Voltage
V
IN
= 2.6V to 5.5V
0.7
×
V
IN
V
EFFICIENCY vs. LOAD CURRENT
(1.2MHz OPERATION)
M
LOAD CURRENT (mA)
E
100
10
60
70
80
90
100
50
1
1000
L = 3.6
μ
H
V
IN
= 5.0V
V
IN
= 3.3V
EFFICIENCY vs. LOAD CURRENT
(640kHz OPERATION)
M
LOAD CURRENT (mA)
E
100
10
60
70
80
90
100
50
1
1000
L = 6.8
μ
H
V
IN
= 5.0V
V
IN
= 3.3V
LOAD REGULATION
M
LOAD CURRENT (mA)
L
100
10
-1.5
-1.0
-0.5
0
0.5
-2.0
1
1000
V
IN
= 5.0V
V
IN
= 3.3V
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
S
5.0
4.5
4.0
3.5
3.0
600
700
800
900
1000
1100
1200
1300
1400
500
2.5
5.5
FREQ = IN
FREQ = GND
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
S
5.0
4.5
4.0
3.5
3.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
2.5
5.5
SWITCHING
NONSWITCHING
SUPPLY CURRENT vs. TEMPERATURE
(SWITCHING)
M
TEMPERATURE (
°
C)
S
80
60
40
20
0
-20
1
2
3
4
5
0
-40
100
V
IN
= 5.0V
V
IN
= 3.3V
Typical Operating Characteristics
(Circuit of Figure 1. V
IN
= 5V, V
MAIN
= 15V, T
A
= +25
°
C unless otherwise noted.)
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